RHSA-2026:30845: Moderate: mod_md security update
Moderate: modmd security update
Other sources
This module manages common properties of domains for one or more virtual hosts. Specifically it can use the ACME protocol to automate certificate provisioning. Certificates will be configured for managed domains and their virtual hosts automatically, including at renewal.Security Fix(es): httpd: modmd: unrestricted OCSP response leads to resource exhaustion (CVE-2026-29168) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
httpd: mod_mdto a version that resolves this vulnerability.Patch CVE-2026-29168
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:30845?
The severity of RHSA-2026:30845 is classified as medium.
How do I fix RHSA-2026:30845?
To fix RHSA-2026:30845, apply the latest security update for mod_md provided by Red Hat.
What systems are affected by RHSA-2026:30845?
RHSA-2026:30845 affects multiple versions of Red Hat Enterprise Linux, including those for IBM z Systems and x86_64 architectures.
What is the purpose of mod_md in RHSA-2026:30845?
Mod_md is a module that manages domain properties and automates certificate provisioning using the ACME protocol.
When was RHSA-2026:30845 published?
RHSA-2026:30845 was published on June 29, 2026.